Treatment of Exhaust Gas Containing Organometallic Compounds -Removal of Tetramethyltin with Solid Adsorbents-

Abstract

Treatment of tetramethyltin (TMT) in N₂ gas with various solid adsorbents was studied. On solid acids such as silica-alumina, activated clay and acid clay, TMT was effectively decomposed, while silica gel or diatomaceous earth exerted only poor activity for TMT removal. Methane was obtained as a single gaseous product. Furthermore, the effects of salts of various transition metals supported on diatomaceous earth on TMT treatment ability were examined. Among the chlorides of Mn(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn (II), only CuCl₂ exhibited a particular activity. On diatomaceous earth impregnated wit h CuCl₂, TMT was degraded to methyl chloride.